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drm/amdgpu: add missing error handling in function amdgpu_gmc_flush_gpu_tlb_pasid

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BugLink: https://bugs.launchpad.net/bugs/2085849

[ Upstream commit 9ff2e14cf013fa887e269bdc5ea3cffacada8635 ]

Fix the unchecked return value warning reported by Coverity,
so add error handling.

Signed-off-by: Bob Zhou <bob.zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Bob Zhou
2024-06-20 15:40:06 +08:00
committed by Mehmet Basaran
parent 9c1a19d7d9
commit fa7298b1c9
1 changed files with 5 additions and 1 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+5 -1
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@@ -720,7 +720,11 @@ int amdgpu_gmc_flush_gpu_tlb_pasid(struct amdgpu_device *adev, uint16_t pasid,
ndw += kiq->pmf->invalidate_tlbs_size;
spin_lock(&adev->gfx.kiq[inst].ring_lock);
amdgpu_ring_alloc(ring, ndw);
r = amdgpu_ring_alloc(ring, ndw);
if (r) {
spin_unlock(&adev->gfx.kiq[inst].ring_lock);
goto error_unlock_reset;
}
if (adev->gmc.flush_tlb_needs_extra_type_2)
kiq->pmf->kiq_invalidate_tlbs(ring, pasid, 2, all_hub);